Topic#1: Fluid sciences
Bertrand Bertrand Dano
Different phases of matter?
Solid Liquid Gas Plasma
Gas
Plasma
Solid Liquid
Bertrand Dano
Solids
Have definite volume Have definite shape Molecules are held in specific locations
by electrical forces vibrat
Topic#1: Fluid sciences
Bertrand Bertrand Dano
Scuba Diving and Hydrostatic Pressure
Surface
Patm
Weight of column of water: W= m g = V g = A z g
z
Pressure = W/A
P = W/A = g z
P
Hydrostatic pressure: Ph = Patm + g z
Bertrand Dano
Scuba Diving and Hydrost
Topic#1: Fluid sciences
Bertrand Bertrand Dano
Measuring Pressure: the U-tube manometer
Patm h
Patm
Fatm
P1 P1> Patm
W= g h S
F1
PatmS+ g h S - P1S = 0 P1 = Patm+ P1gage
P1gage= g h
Bertrand Dano
Measuring Pressure: the open tube manometer
Patm
Patm
Patm
Topic#1: Fluid sciences
Bertrand Bertrand Dano
The Bernoulli equation
P + U2 + gh = cte
P1 + 1U12 + 1gh1 = P2 + 2U22 + 2gh2
Daniel Bernoulli (1700-1782)
The Bernoulli Equation is Listed in Michael Guillen's book "Five Equations that Changed the World: The
Shoreline CC Homework #3 Solution Chap 15, Problems 4, 10, 13, 44, 57, 76, 77, 78
PHYS 122
4. (a) The acceleration amplitude is related to the maximum force by Newtons second law: Fmax = mam. The textbook notes (in the discussion immediately after Eq. 15-
Shoreline CC Homework #4 Solution Chap 16, Problems 1, 8, 9 ,13, 22
PHYS 122
1 A wave has an angular frequency of 110 rad/s and a wavelength of 1.80 m. Calculate (a) the angular wave number and (b) the speed of the wave.
2. (a) The angular wave number is
Lab # 4 Friction
By J. Didier Wandi, Charlie Ros, Jordan Ferullo
Introduction
The purpose of this lab is to learn how to obtain the coefficient of static friction through
experiment, and to see how the theory we learned in class can be applied here. We ha